Miscellaneous Mechanical Jobs of Boilers of Nimcha Colliery.

Amount

Item description

50 NB IBR globe valve flange type.(With 10% profit)

50 NB seamless IBR pipe (With 10% profit)

50 NB flange table H with IBRTC(With 10% profit)

50 NB blank flange table H.(With 10% profit)

25 NB IBR globe valve flangetype(With 10% profit)

25NB IBR disk type non return valve(With 10% profit)

25 NB seamless IBR pipe (With 10% profit)

25 NB flange table H with IBRTC(With 10% profit).

25 NB L/R bend.(With 10% profit)

Cost of IBR quality BQ electrodes.(With 10% profit)

Fabrication and fitting charges.(With 10% profit)

Emergency build up of boiler firedoor surrounding plate using plate using pre- post heat treatment.(With 10% profit)

Through Build up of front mud plug doubling plate.(With 10% profit)

Replacement of steam joints of main steam stop valve boiler side, steam line side as well as of top cover.(With 10% profit)

Replacement of steam joint of safety valve(With 10% profit)

Gauge column cock overhauling.(With 10% profit)

Dismantling of both the firedoors for ease of removing the dmaged firebars.(With 10% profit)

Dismantling of damaged firebars from both the fireflues of the boiler.(With 10% profit)

Resseting of firebars and tracking them with the backend support, middle support and front support.(With 10% profit)

Refitting of both the firedoors to the boiler.(With 10% profit)

Gauge column cock overhauling.(With 10% profit)

150NB non return valve flange type thorogh dismantling and machining of valve base seat and NRV seat.(With 10% profit)

Top manhole cover through cleaning and stud replacement.(With 10% profit)

High pressure low water valve seat maching and assembling to be one complete set.(With 10% profit)

HPLW outside handle brushing and painting.(With 10% profit)

150 NB stop valve L type thorogh dismantling and maching of valve base seat and main seat . Refrabrication of spindle and bush for proper operation.(With 10% profit)

50NB blow down valve Thorogh dismantling and overhauling.(With 10% profit)

Bottom manhole doors are to be cleaned and the damaged studs are to be replaced with new HT studs.(With 10% profit)

50 NB safety valve throrogh overhauling.(With 10% profit)

Gauge column stand pipe with GG cocks to be overhauled thoroghly and new bush are to be fitted and if required the damaged spindle of the gg ocks are to be replaced with new SS spindles.(With 10% profit)

50 NB Feed checkk valve thorogh overhauling and NRV of FCV to be machined properly (With 10% profit)

Blow down bend and tool piece to be cleaned and pressure tested before fitting to the boiler.(With 10% profit)

100NB non return valve (NEW) flange hole drilling as per required PCD of exiting line.

50NB non return valve (NEW) flange hole drilling as per required PCD of exiting line.(With 10% profit)

150NB stop valve L type (NEW) flange hole drilling as per required PCD of exiting line.(With 10% profit)

25 NB wheel valve flange type (NEW) flange hole drilling as per required PCD of existing line.(With 10% profit)

Total impact of GST for the purpose of CTC

M/s Prasanta Karmakar